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authorLinus Walleij <linus.walleij@linaro.org>2021-05-11 15:04:21 +0200
committerLinus Walleij <linus.walleij@linaro.org>2021-06-17 15:31:05 +0200
commitb80e60eb8ecc77e479ed19a70d1b9e86f0fcc2ca (patch)
tree61fab754ca27a6374a66972766cd1bdb96af254f
parentcca061b04c0de4c8a0b2cfcdf534ab0a566178c3 (diff)
hw_random: ixp4xx: Add OF support
This makes the hardware random number generator found in the IXP46x SoCs probe from the device tree. Cc: Deepak Saxena <dsaxena@plexity.net> Acked-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
-rw-r--r--drivers/char/hw_random/ixp4xx-rng.c10
1 files changed, 10 insertions, 0 deletions
diff --git a/drivers/char/hw_random/ixp4xx-rng.c b/drivers/char/hw_random/ixp4xx-rng.c
index 8b59aeefd4a4..188854dd16a9 100644
--- a/drivers/char/hw_random/ixp4xx-rng.c
+++ b/drivers/char/hw_random/ixp4xx-rng.c
@@ -19,6 +19,7 @@
#include <linux/init.h>
#include <linux/bitops.h>
#include <linux/hw_random.h>
+#include <linux/of.h>
#include <linux/soc/ixp4xx/cpu.h>
#include <asm/io.h>
@@ -55,9 +56,18 @@ static int ixp4xx_rng_probe(struct platform_device *pdev)
return devm_hwrng_register(dev, &ixp4xx_rng_ops);
}
+static const struct of_device_id ixp4xx_rng_of_match[] = {
+ {
+ .compatible = "intel,ixp46x-rng",
+ },
+ {},
+};
+MODULE_DEVICE_TABLE(of, ixp4xx_rng_of_match);
+
static struct platform_driver ixp4xx_rng_driver = {
.driver = {
.name = "ixp4xx-hwrandom",
+ .of_match_table = ixp4xx_rng_of_match,
},
.probe = ixp4xx_rng_probe,
};